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Power Systems

Digital Frequency Meter

Digital frequency meter is a general purpose instrument that displays the frequency of a periodic electrical signal to an accuracy of three decimal places. It counts the number events occurring within the oscillations during a given interval of time. As the preset period gets completed, the value in

By Electrical4u 03/27, 2024
Power Systems

How to Use a Digital Multimeter?

Digital Multimeter is a device which has two words in its name: Digital and Multimeter. Let’s first try to analyze why do we have them there i.e. what do each of them actually convey which in turn helps us understand what does a multimeter do. The first word – digital – indicates that the meter has

By Electrical4u 03/27, 2024
Power Systems

How to Use a Digital Multimeter: A Complete Guide

A digital multimeter (DMM) is a versatile and essential tool for measuring electrical quantities such as voltage , current , resistance , capacitance , frequency, temperature, and more. It can also test the continuity and diode function of circuits and components. A digital multimeter can display th

By Electrical4u 03/27, 2024
Power Systems

Analog Multimeters

Multimeters as the name suggest the meters that we use to measure multiple quantities with the same instrument. The most basic multimeter measures voltage , current , and resistance . Since we use it for measuring current (A), voltage (V) and resistance (Ohm), we call it as AVO meter. We can categor

By Electrical4u 03/27, 2024
Power Systems

Flow Meter: What They Are & Types of Flow Meters

What is a Flow Meter? A flow meter is a piece of equipment used to measure the flow rate of solids, liquids, or gases. Flow meters can do this linearly, non-linearly, volumetrically, or on a weight basis. Flow meters are also known as flow gauges, flow indicators, or liquid meters. Types of Flow Met

By Electrical4u 03/27, 2024
Power Systems

Capacitance Meter

A capacitance meter is a piece of electronic test equipment whose purpose is to measure capacitance, mostly of discrete capacitors . The capacitance meter works based off of the directly proportional relationship between capacitance and a time constant. This relation is used in this method of measur

By Electrical4u 03/27, 2024
Power Systems

Ohmmeter: How Does it Work? (Series, Multi-Range & Shunt Type Ohm Meters)

What is an Ohmmeter? An ohmmeter (also known as an ohm meter ) is an instrument that measures the electrical resistance of a material (resistance is a measure of the opposition to the flow of electric current ). Micro-ohmmeters (micro ohmmeter or microhmmeter) and Milliohmmeters make low resistance

By Electrical4u 03/27, 2024
Power Systems

Vector Impedance Meter

Impedance, which is having both magnitude and phase, is truly an opponent to the flow of current in AC circuits with the presence of an applied voltage . The Vector Impedance Meter is employed for measuring both the amplitude and phase angle of impedance (Z). Normally, in other measuring techniques

By Electrical4u 03/27, 2024
Power Systems

Protection of Meters

When we measure an electrical signal there very often may be a chance of over current through the meter. This may be due to following reasons. The meter may be connected wrongly to the circuit. The rating of the meter is selected wrongly for the measurement. Occurrences of over current in the circui

By Electrical4u 03/27, 2024
Power Systems

Working Principle of Voltmeter and Types of Voltmeter

What is Voltmeter? Voltmeter is a voltage meter. Which measures the voltage between the two nodes. We know the unit of potential difference is volts. So it is a measuring instrument which measures the potential difference between the two points. Working Principle of Voltmeter The main principle of v

By Electrical4u 03/27, 2024
Power Systems

Ammeter Working Principle and Types of Ammeter

Introduction of Ammeter As we know a word “meter” is associated with the measurement system. Meter is an instrument which can measure a particular quantity. As we know, the unit of current is Ampere. Ammeter means Ampere-meter which measures ampere value. Ampere is the unit of current so an ammeter

By Electrical4u 03/27, 2024
Power Systems

Phase Sequence Indicator

We have three phase system and by convention we write three phases as RYB. Phase sequence indicator is the indicator that determines the phase sequence of the three phase supply system. When we give conventional three phase supply (i.e. RYB) to the induction motor , we see that the direction of the

By Electrical4u 03/27, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

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Digital Frequency Meter

How to Use a Digital Multimeter?

How to Use a Digital Multimeter: A Complete Guide

Analog Multimeters

Flow Meter: What They Are & Types of Flow Meters

Capacitance Meter

Ohmmeter: How Does it Work? (Series, Multi-Range & Shunt Type Ohm Meters)

Vector Impedance Meter

Protection of Meters

Working Principle of Voltmeter and Types of Voltmeter

Ammeter Working Principle and Types of Ammeter

Phase Sequence Indicator

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